Inking device



NQW i941 R'L. GREENLEAF INKING DEVICE 2 Sheeis-Sheet 1 Filed March 15',1940 4 12-2. Green/ear.

UN TED Si.

NKINGDEVICE ert L. Greenleaf, Anbilrn mg fl pplication- Mat-1 .011315,19 .s f Nfl- 3249 .75

I (Cl. El e-305)? This..-sinvention. relates to an improvedinking devicefor use with stampingand embossin g ma chinesof the type. shown in myapplication, Se rial No. 294,941, filed Sptembenlh 19393 One :objectofthe sinvention is to provide an inkingiadevice which will be operative.fen uni formly :inkin'gni the striking: surface: :of; a die sothatsaidxdie ;lWi]]. .be properly; inked. Lpreliminarytoiaz-markin'geoperatiorrs Another sobjectzofa theinventionx is toprovide ancinking .zdevioewhichlwiil Link .the. die: in such a :mannerthat IheI BLWiuilbQ-nOLSul/DhlS rofsink: on the: die; 1 with thetresnltthat; a- ;clean .line will be assuredand; waste of inkiobviated;

Aifurther obj eot'; of ..-the;=invention. is .to .provide an inkingdevice which; will; inoludeian rink: .rollwhich is mounted-so that;whemthe; strikinglhead employed .is:-.movedirear.-wardly,- saidinki-ngnroll will .be released.:-.and.-.will travel ;over .theiaoeeofthe: die.asrthe'strikingohead moved forwardly for:completelyg-and:efiectivelyqinkingxsaids die;

A further: obj ectof. the-invention ,isitmprovide an inking: deviceincluding. improvedrmounting mechanism which; will:beioperative:forsholding the ;-ink:-roll iin-ian inoperative: positionexcept at suoh'time' wlienlsaid;v inkalroll' isnactuallyginkingthe.face.:of1.the die;

Ari-still"furtherpobject of: tIIB iIlVEIIDiOIIJJiS to provide: an inking-;.de.vice remploying simproved latch mechanism for :releasing.thesinkerollasosas to permit: it .to. engage; the; face. ofi; the; :diefonaan inkingpp eration.

Still. another. obiect of: the inventiongisz to; pro: vide anink-ingdevice employingim-proved means for mounting the inkarolhsaidmeansl'beingzoni erative for. urging the ink. roll into engagement withthe; face-f. the;-.die during m inking operation.-

And a still-1 further. :objeot of 1 the invention {is to provideea-deviees 10f; this character employing raiisonrthezdie; holder;whichrails :will be effective" for: automatically; returning; the ink;roll to inoperative position after the face of the die has been inked,said rail including means for auto matically releasing the inle rollnpreliminary :to a die -inking;;operation..

And :another' object of: the invention-is to pro-v vide:- an inkingidevice employing? an. ink well for inking; the roll :when necessary.

Other objects. .ofrthe invention willrbe made known :as-Ltheadescription proceeds;

In the drawings:

Figure:.1.is:.a perspective .view-o-f .agmarking maohineandnshowingmimmoved inkinggdevice position with. theqink roll ofitmyinkingvdevice in en-gagement' with the-die,

Figure 3 151a;side-elevation showing the marking machine:with;the-striking headin its ere-are most: positionand-showing insection; therelease dogin engage ent -with.;.the-latoh ;for -,releasingthe. inkrroll'; preparatoryytman ink ing ,-operation and Figl l-llei'4-isamen1arged detai-l vertical-sectional View showing; the method of:mounting the-plung erswhich support therends of" theiinkwrolllReferring. now to thadrawingsrwhereinyas will be seen, similar referencenumerals r{designate similar parts throughout the-,several-.views,} thenumeral I indicatesginageneral4 a-..marking..- mas chine-of the type;shewndn my pendi-ng, applica: tion heretofore referred to.-;- Theemarking; ma, chine i. l includes a zframe. .2 -which-dis preferablyformed as a single unit casting; 'I'heframeLZ-inscludes .-awork-sunportingitable .3 andva platform 4, saidplatform-being disposedin a rparallel plane above thatiof the. work-supnortingetable 3.", Aswill be noted, the .workesupportingatable extends substantial-1y,halfzthellength of the framefl while the platform extends substantially-the otherxhalf of the: length vof said-frame. Feet-,R-are'formed onthe.opposite. endsoftheframevand are taper-e turedior receiving; fastening.devices.-- AI 3181 1 11: 03.113 extending shoulder 6 is defined. betweenthe.work-supportingtabl. 3.. and. the, platform 4'. Side. walls .1 V andBareprovided .for. the frame. .2-.

Associated withthe frame 2..is. a striking head 9;to which is.removably' connected the. dieghold-l er HL'. Thedie holder l0supports,aldie whioh is to. be engaged with :the upper surface of work[on thework-supporting. table 3,; Pairs...of Icon necting rods IZ-andl3' operativelv'connectthe striking head. 9 with theframe v2i; As.the..,co'n.- struction. of. the...striking .head,;..the.. connectingrods,.-.andthei-fiame. are set. forthiully ,in. the pendingapplieationheretofore mentioned,.it is not believed necessary 1 to.discuss this construe.- tionin .more detail, in this. application.v My,im' proveddnk-ing device includes .an ink roll .I 4. which is formed .ofsponge rubberor other suitablema, teriaL; The-ink :rollqldisrmountedmabovethe platform :4 at the -forward end thereof and-neartheshoulder-i5; The-inkmo-lll 4 is, mounted onfa shaft; 1 iii-whichiextendsgthroughout the :width ;of thegframe. ...and; pastz-athesidewalls .7 and rfi; Mounted on; the-.oppositdends of theeshaftzli xarerollers l6 which are rotatably engageable with tracks l1 on thesideedges of the die holder Hi. It will be understood that the rollersIE will roll along the tracks I! when the striking head is shiftedforwardly for effecting a stamping or embossing operation. Small rollersl'l are carried on the corresponding inner ends of the track H andengage the rollers l6 so as to reduce wear and provide smootheroperation for the rollers IS on the track l1. Outwardly extendingtrunnions l8 are formed on the rollers l6 axially thereof. Thesetrunnions are engageable with the latch mechanism, to be described inmore detail hereinafter.

In order to mount the ink roll, I employ plungers l9 and 20. Theplungers l9 and 20 are of identical construction so that a descriptionof one will suffice for both. As seen in Figures 1, 2 and 4 of thedrawings, the plungers are mounted in the platform 4 at the forward endthereof adjacent the shoulder 6. The plunger 20 is typical and includesa stem 2| which has a counterboredupper end which is internally threadedto define a socket 22. The lower end of the stem 2| extends through aboss 23 on the platform 4 and into the frame beneath said platform. Aflange 24 is fitted on the stem, near its lower end, and serves a twofold function of limiting 'upward travel of the stem and of providing aseat for the upper end of a coil spring 25. The coil spring 25 ismountedin a guide cylinder 26 which extends throughout the height of theframe. Screwed into the socket 22 is a supporting screw 21 which isformed with an arcuate upper end 28. The upper end 28 receives the shaftl of the ink roll [4 at a point between the end of said ink roll and theinner surface of the roller l6.

It-will now be seen that the plungers 29 effectively support the inkroll in operative position. The springs 25 will urge: said plungersupwardly for urging the ink roll into engagement with the under surfaceof the die on the die holder during an inking operation. The position ofthe ink roll on the plungers 20 may be adjusted by temporarily removingthe ink roll from the screws 21, and then rotating said screws to thedesired position with respect to the stems. In order to retain theplungers in inoperative position, in which position the ink roll will beretained except when actually inking the face of the die, I providelatches which are shown generally at 29. Two of the latches 29 areemployed, one on each of the side walls 1 and 8 of the frame. As will beseen by referring to the drawings, the latches are mounted on the sidewalls near the shoulder 6 and directly beneath the trunnions l8.Inasmuch as the latches are of identical construction, a description ofone will be suflicient. A typical latch includes a base 30 which issubstantially rectangular in shape. The base is held in place on theside walls of the frame by means of screws 3i. A portion of the upperend of the base 39 is turned outwardly at a right angle to define abracket 32. An adjusting screw 33 is extended through the bracket. Apost 34 is mounted on the base near its upper corner and serves to mountone end of a spring 35. A latch member 36 is associated with the base 29and is pivotally mounted thereon by means of a pin 31, said pinextending through the lower end of said member. The spring has itsopposite end connected with the latch member, near its mid portion, bymeans of a pin 38. It will be seen that the spring 35 urges the latchmember forwardly toward the adjusting screw 33. At its upper end, thelatch member is formed with an arcuate latch face 39 which is shaped toreceive a portion of one of the trunnions l8.

As seen in Figure 3 of the drawings, the rails of the track I! are eachprovided with depending pivoted dogs 40. The dogs are limited againstforward movement by pins 4| which are extended into the rails. It shouldbe understood that the dogs 40 will extend laterally so as to be in thesame longitudinal path with the upper end of the latch members 36.

In order to provide means for inking the ink roll l4, when necessary, Iemploy an ink trough 42 which is of U-shaped formation. The ink troughis provided with end walls 43 and A l which are formed with bearingslots 45. The bearing slots receive the shaft l5 of the ink roll H forpermitting said ink roll to have a portion thereof immersed in inkcarried in the trough. In order to ink the ink roll, it is onlynecessary to rotate said roll in the trough until said ink roll is inkedthroughout its circumference. The operation of my improved inking devicewill now be described in more detail. After the work I I has been placedon the worksupporting table 3 of the frame 2, the striking head 9 isshifted rearwardly to the position shown in Figure 3 of the drawings. Inthis position, the dogs 40 will engage the upper ends of the latchmembers 38 for releasing said latch members from engagement with thetrunnions l8. When this takes place, the springs 25 will urge the stems2| upwardly, with the result that the ink roll will be urged upwardlyinto engagement with the forward end of the die holder 10. As thestriking head is swung upwardly and forwardly, as shown in Figure 2, theplungers will retain the ink roll in engagement with the face of the dieon the die holder, for effectively inking said die. As the striking headis further moved forwardly, it will begin to swing downwardly. As thestriking head moves downwardly and forwardly, the ink roll M, with theplunger 20, will be forced downwardly against the tension of the springs25. It will, of course, be understood that the rollers 16 will rollalong the tracks l'l while the ink roll is inking the face of the die.The tracks H are of sufficient length so that, when the striking headswings clear from above the platform 4, the tracks will have urged therollers downwardly to such a position that the latch members 36 willengage the trunnions 18 for retaining the ink roll in inoperativeposition. In other words, as heretofore mentioned, the ink roll will bein the position shown in Figure 1 at all times, except when actuallyinking the face of the die. Movement of the ink roll into and out ofoperative positions is entirely automatic and is controlled bythemovement of the striking head and the die holder. It should beunderstood that, if desired, but one of the latches 29 may be employed.The use of two of said latches will assure uniform holding action forthe opposite ends of the ink roll.-

As the matter of inking the ink roll H has been described hereinbefore,it is not thought necessary to describe it further. It is accordinglybelieved that the construction and operation of my improved inkingdevice will be thoroughly understood from the foregoing description.

Having thus described the invention, what is claimed as new is:

l. A device of the class described including, in combination with amarking machine having a striking head, a frame, means swinginglyconnecting the striking head with the frame, a die holder having tracks,and a die on the die holder, an ink roll, plungers operativelyconnecting the ink roll with the frame, means for resiliently mountingthe plungers, a latch for holding the ink roll in a retracted position,and a dog on the track of the die holder, said dog being engageable withthe latch upon rearward swinging movement of the striking head forreleasing the ink roll whereby said ink roll will be urged to engage theface of the die during forward swinging movement of the striking head,further forward movement of said striking head shifting said ink roll toretracted position and in engagement with the latch.

2. In an inking device, in combination with a frame, a striking head,means operatively connecting the striking head with the frame, a dieholder on the striking head and having a track and a dog on the track,an ink roll having a shaft, rollers on the shaft, said rollers beingengageable with the track, means resiliently mounting the ink roll onthe frame and normally urging the ink roll toward an extended positionabove the frame, and a latch carried by the frame and having a latchmember engageable with the ink roll for retaining the ink roll in aretracted position near the frame, said striking head being shiftablefor engaging the dog with the latch member for freeing the ink rollwhereby said roll will be urged to engage the die on the die holder forinking said die holder during forward movement of the striking head,further forward movement of said striking head shifting said ink rolldownwardly for engagement with the latch member as the striking head ismoved clear of the ink roll.

3. In combination with a marking machine having a striking head, aframe, means swingingly connecting the striking head with the frame, adie holder on the striking head, and a die on the die holder, saidstriking head being movable from an inoperative position above the frameforwardly to a stamping position and rearwardly to a position forinking, an ink roll on the frame, means for resiliently mounting the inkroll, means for retaining the ink roll in lowered retracted position,means on the die holder and engageable with said last mentioned meansfor releasing the ink roll whereby said ink roll will engage the face ofthe die as said striking head is moved forwardly toward a stampingposition, and means for urging said third mentioned means intoengagement with the roll for relatching the roll after the striking headhas moved past said roll toward operative position.

4. In combination with a marking machine having a striking head, aframe, means swingingly connecting the striking head with the frame, adie holder having tracks, and a die on the die holder, said strikinghead being movable from an inoperative position above the frame to aretracted position for inking and also being movable to a stampingposition, an ink roll, means movably connecting the ink roll with theframe, means for normally urging the ink roll upwardly from the frame,means for holding the ink roll in a lowered retracted position againstthe tension of said last mentioned means, means on the track of the dieholder and engageable with said last mentioned means upon rearwardswinging movement of the striking head for releasing the ink rollwhereby said ink roll will be urged to engage the face of the die duringforward swinging movement of the striking head, and means urging thethird mentioned means to relatching position upon further forwardmovement of the striking head for relatching the roll in loweredretracted position.

RUPERT L. GREENLEAF.

